Pump



'- June 16, 1936. w C, ANTHONY 2,044,044

PUMP

Filed Dec. `l0, 1932 Alito-P72@ Patented June 16, 1936 UNITED STATES PUMP William C. Anthony, Streator, Ill., assignor to Anthony Development Company, Streator, Ill.,

a syndicate Application December 10, 1932, Serial No. 646,568

4 Claims.

This invention relates to means for creating pressure and in one form it is embodied in a hydraulic pump.

It has for one object to provide means for producing hydraulic pressure with a minimum of apparatus. Another object is to provide means for operating and controlling a pressure developing and applying system with a minimum of parts. Another object is to provide a remote control and operating mechanism for developing and utilizing pressure.

Other objects will appear from time to time in the specification and claims.

The invention is illustrated more or less diagrammatically in the accompanying drawing, wherein- Figure 1 is a side elevation of one form of the device, with parts in section;

Figure 2 is a transverse vertical cross section, with parts omitted;

Figure 3 is a horizontal sectional view, taken at line 3-3 of Figure 1;

Figure 4 is a detail showing the pump plunger;

Figure 5 is a view showing the plunger taken at an angle of 90 with respect to the view of Figure 4.

Like parts are designated by like characters throughout the specification and drawing.

A is a housing member forming a main chamber A1, provided with an entrance port A2 which may be interiorly threaded as at A3 and carrying a closing or sealing plug A4. In its bottom the chamber A1 is provided .with a discharge or outlet opening A5.

Formed preferably integrally with the-housing A is a base portion B provided with perforated ears B1 or other points for attachment to a base. Formed in the base portion B is a pumping cylinder portion B2. The port A5 communicates with the cylinder B2. At one end'a packing B3 is provided which is adjustably held in place by a gland B4. At its opposite or discharge end the cylinder B2 has seated within it a valve cage B5 within which is positioned a ball valve Bs normally held closed by a spring B". A seating and connecting member Ba is positioned in the outer end of the valve cage B5.l This serves to hold the spring and the ball in position and may be adjusted to vary the compressionof the spring. It also is threaded interiorly as at B9 or provided with some other form of attachment lwhereby a pressure line B10 may be fastened to it and fluid under pressure from the cylinder may be forced past the valve through the line B1u to any suitable device such for vexample as a jack or any other mechanismbr apparatus where-pressure is desired.

An operating lever support may be provided on the housing A and may be made integrally with it; although this is not essential, it is done in the (Cl. 10S-38) particular form of the invention shown herewith. In the form shown this support comprises a, web C, bifurcated to provide arms C1 C1 and provided also with reinforcing or stiffening web members C2 C2. Each of the portions C1 is provided with a perforation C3 to receive a bearing member and below the perforation C3 it is provided with an irregularly shaped opening or perforation C4. At its bottom the perforation'k C4 is provided with a relatively elongated and flattened section C5. At its top it is provided with a shortened portion C6 and between the two an inwardly projecting nose Cr1 is formed.

D is a handle which may be provided with a forwardly bent portion D1. It carries a pin D2 adapted to be positioned within the openings or perforations C4 in the bifurcations C1. It is slotted as at D3 and through this slot is positioned a pin D4 which lies within the perforations C3. Adjacent its lower end the handle D is slotted as at D5 for engagement with the pump piston or plunger.

E is a pump plunger or piston. It is slotted as at E1at one end and is perforated at that end as at E2. A pin E3 is fixed in the perforations and extends across the slot. The slot embraces the lower end of the handle D and the pin E3 extends through the slot D5 so that the movement of the handle will move the piston. I'he piston is provided with an annular groove or depression E4, preferably adjacent one end. E5 is an inclined groove formed in one end of the piston E, extending from the end to the annular groove E4.5

'I 'here is also shown in Figure 2 one form of apparatus in connection with which the pump may be used. As indicated it is a hydraulic jack or lift. F is a base. F1 is a cylinder to which the pressure line B10 is arranged to supply pressure. F2 is a piston member which may have an upper surface member F3.

It will be realized'that whereas I have herewith shown and described a practical operative device, nevertheless many changes might be made in the size, shape, number and disposition of parts without departing from the spirit of the invention and I wish, therefore, that the showing be taken as in a sense diagrammatic. l

The use andl operation of my invention are as follows:

The invention comprises in one sense a pressure pump and is applicable as'means' of developing pressure wherever it is useable or necessary. It may for example be used to operate a jack, as indicated in Figure 2. It .may be usedv to move a valve to operate a control element. In short, to do anything which may be conveniently done by pressure and in particular it is useful for operating parts which require considerable force or pressure and which must be operated at a dis- I tance from the operator and from the pump.

In the form shown for example in Figure 2, when the operator wishes to raise the jack, he manipulates the handle so that the pin D2 is moved into the portion C5 of the opening C'1 and then the handle is worked back and forth, the stroke being limited by the length of the portion C5. 'I'he proportions of the parts are such that in this movement the annular grooveE4 does not come into register with the passage or port C5 and with each reciprocation a certain amount of iluid within the chamber A1 is drawn into the port A5 and forced outwardly through the valve B0 and the pressure line B10 and into the chamber F1, thus gradually building up fluid under pressure within that chamber and raising4V the member F5 and whatever may be upon it. Obviously this member may be adapted merely to raise a weight, to operate a control or to carry out any one of an almost inilinte number of operations. When a sufiicient amount of iiuid under pressure has been forced into the cylinder F1 the reciprocation is stopped and the parts will remain stationary. When'the operator desires to lower the member li'2 or in any way to reduce the pressure within the cylinder F1, he raises the handle so that the pin D2 lies within the portion C5. If it is move d to the right of that portion as shown in Figure 1, the pin and' the handle will be prevented from falling into the portion C5 by the nose C". With the pin in the position C6 and resting upon the nose C7, the upper end of the handle 1s moved to the left from the position shown in Figure 2, and the piston is carried to the right until the annular groove E4 comes in register with the port A5. At about this time the end of the piston strikes the ball Valve Bi and. unseats it, thus permitting fluid under pressure to run back along the pressure line B10 through the valve B5, through the groove E5, in the piston, about the groove E4 and through the port A5 b ack into the chamber A1. As long as there is pressure within the pressure line B10 and as long as the passage back to the chamber A1 is held open by retaining the piston in the position indicated, the pressure will be forced back into the chamber A1. This movement may be stopped at any time by moving the piston in reverse, which moves it out of contact with the ball valve B5 and so permits pressure to seat`the valve and prevent further escape. In this manner, of course, the release of pressure from the pressure line back into the chamber A1 is controllable absolutely by the operation of the piston through the operation of the handle and all ofthe pressure or any part of it may be released.

I claim:

1. In combination in a pump, a housing providing a reservoir and a cylinder, a piston controlled port between the two, a piston mounted for reciprocation within said cylinder to control said port and to move liquid, an outwardly opening discharge valve for said cylinder, an attaching part on the outer end of said piston, a fulcrum part fixed with respect to said housing, a plurality of stops xed at different distances with respect to said housing, a handle provided with means engaging said fulcrum part, and means for engaging said piston part, the fulcrum engaging means being shaped to permit relative adjustment of the handle with respect to said parts, a stop on said handle adapted to contact one or another of the Aiirst mentioned stops tovcontrol the length of stroke of said piston.

2. In combination in a pump, a housing providing a reservoir and a cylinder, a piston controlled port between the two, a piston mounted for reciprocation within said cylinder to control said port and to move liquid, an outwardly opening discharge valve for said cylinder, an attaching pin on the outer end of said piston, a fulcrum pin xed with respect to said housing, a plurality of stops fixed at different distances with respect to said housing, a handle provided with a pair of slots, one engaging said fulcrum pin, the other engaging said piston pin, the slots being larger than the pins to permit relative adjustment of the handle with respect to said pins, a stop on said handle adapted to contact one or another of the iirst mentioned stops to control the length of stroke of said piston.

3. In combination in a pump, a housing providing a reservoir and a cylinder, a piston controlled port between the two, a piston mounted for reciprocation within said cylinder to control said port and to move liquid, an outwardly opening discharge valve for said cylinder, an attaching pin on the outer end of said piston, a fulcrum pin xed with respect to said housing, a. plurality of stops fixed at different distances with respect to said housing, a handle provided with a pair of slots, one engaging said fulcrum pin, the other engaging said piston pin, the slots being larger than the pins to permit relative adjustment of the handle with respect to said pins, a stop on said handle, adapted to contact oneor another of the rst mentioned stops to control the length of stroke of said piston, the piston proaway from its end and with an additional external groove in communication with and extending from said encircling groove to the end of the piston, the two providing'in one position a passage for the flow of fluid between the cylinder and the reservoir through the port between them, the piston, when in position to provide said passage for flow of uid between the cylinder and the reservoir, holding said outwardly opening discharge valve open.

4. In combination in a pump, a housing providing a reservoir and a cylinder, a piston controlled port between the two, a piston mounted for reciprocation within said cylinder to control said port and to move liquid, an outwardly opening discharge check valve for said cylinder, an attaching pin on the outer end of said piston, a fulcrum pin fixed with respect to said housing, a plurality of stops fixed at diierent distances with respect to said housing, a handle provided with a pair of slots, one engaging said fulcrum pin, the other engaging said piston pin, the slots being larger than the pins to permit ready relative adjustment of the handle with respect to said pins, a stop on said handle adapted to contact one or another of the rst mentioned stops to control the length of stroke of said piston, the piston contacting and opening the check valve upon its longer stroke, the piston provided with an encircling exterior groove positioned away from its end and with an additional groove extending from said encircling groove to the end of the piston, the two providing in one position a passage for the now of uid between the cylinder vided with an encirclingexterior groove positioned 35 

